Effects of calcium silicate treatment on the composition of forest floor organic matter in a northern hardwood forest stand
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| 024 | 7 | 0 | |a 10.1007/s10533-014-0043-6 |2 doi |
| 035 | |a (NATIONALLICENCE)springer-10.1007/s10533-014-0043-6 | ||
| 245 | 0 | 0 | |a Effects of calcium silicate treatment on the composition of forest floor organic matter in a northern hardwood forest stand |h [Elektronische Daten] |c [Ankit Balaria, Chris Johnson, Peter Groffman, Melany Fisk] |
| 520 | 3 | |a Calcium amendment can help improve forest sustainability in stands that have been impacted by chronic acid deposition. An important component of this improvement is the stimulation of the microbial activity that supports ecosystem nutrient cycling processes. To test the hypothesis that Ca treatment alters the structure and solubility of organic matter substrates, an important driver of microbial activity, we investigated the effect of wollastonite (CaSiO3) treatment on soil organic matter (SOM) and hot-water-extractable organic matter (HWEOM). We found a decrease in the HWEOM content of forest floor soils within 2years of treatment with a high dosage of wollastonite (4,250kgCa/ha), but not at a low dosage (850kgCa/ha). High-dosage treatment did not reduce the biodegradability of HWEOM. Hence, a high dose of CaSiO3 appears to reduce the solubility of organic matter in the forest floor but not the bioavailability of the extracted SOM. Nuclear magnetic resonance spectroscopy revealed no significant changes in the O-alkyl C content of SOM in response to wollastonite addition, but a reduction in the O-alkyl C content of HWEOM suggests that the extractability of carbohydrate structures was reduced by added CaSiO3. Phosphorous treatment, when performed in combination with Ca, also decreased the O-alkyl C content of HWEOM, but had no effect when performed without Ca. The reduced solubility of SOM after Ca treatment may have been the result of bridging between Ca2+ and negatively charged sites on SOM, as suggested in other studies. Also, high concentrations of Si in soil solution, due to dissolution of the wollastonite, likely resulted in oversaturated conditions with respect to SiO2 or kaolinite, perhaps leading to co-precipitation of soluble organic matter. Overall, our results suggest that added Ca and/or Si may react with SOM to reduce the accessibility of labile C forms to soil microbes. | |
| 540 | |a Springer International Publishing Switzerland, 2014 | ||
| 690 | 7 | |a Calcium |2 nationallicence | |
| 690 | 7 | |a Forest soil |2 nationallicence | |
| 690 | 7 | |a Hot-water extractable organic matter |2 nationallicence | |
| 690 | 7 | |a Nuclear magnetic resonance spectroscopy |2 nationallicence | |
| 690 | 7 | |a Phosphorus |2 nationallicence | |
| 690 | 7 | |a Soil carbon |2 nationallicence | |
| 690 | 7 | |a Soil organic matter |2 nationallicence | |
| 700 | 1 | |a Balaria |D Ankit |u Department of Civil and Environmental Engineering, Syracuse University, 151 Link Hall, 13244, Syracuse, NY, USA |4 aut | |
| 700 | 1 | |a Johnson |D Chris |u Department of Civil and Environmental Engineering, Syracuse University, 151 Link Hall, 13244, Syracuse, NY, USA |4 aut | |
| 700 | 1 | |a Groffman |D Peter |u Cary Institute of Ecosystem Studies, 2801 Sharon Turnpike, P. O. Box AB, 12545, Millbrook, NY, USA |4 aut | |
| 700 | 1 | |a Fisk |D Melany |u Department of Biology, Miami University, 45056, Oxford, OH, USA |4 aut | |
| 773 | 0 | |t Biogeochemistry |d Springer International Publishing |g 122/2-3(2015-02-01), 313-326 |x 0168-2563 |q 122:2-3<313 |1 2015 |2 122 |o 10533 | |
| 856 | 4 | 0 | |u https://doi.org/10.1007/s10533-014-0043-6 |q text/html |z Onlinezugriff via DOI |
| 898 | |a BK010053 |b XK010053 |c XK010000 | ||
| 900 | 7 | |a Metadata rights reserved |b Springer special CC-BY-NC licence |2 nationallicence | |
| 908 | |D 1 |a research-article |2 jats | ||
| 949 | |B NATIONALLICENCE |F NATIONALLICENCE |b NL-springer | ||
| 950 | |B NATIONALLICENCE |P 856 |E 40 |u https://doi.org/10.1007/s10533-014-0043-6 |q text/html |z Onlinezugriff via DOI | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Balaria |D Ankit |u Department of Civil and Environmental Engineering, Syracuse University, 151 Link Hall, 13244, Syracuse, NY, USA |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Johnson |D Chris |u Department of Civil and Environmental Engineering, Syracuse University, 151 Link Hall, 13244, Syracuse, NY, USA |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Groffman |D Peter |u Cary Institute of Ecosystem Studies, 2801 Sharon Turnpike, P. O. Box AB, 12545, Millbrook, NY, USA |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Fisk |D Melany |u Department of Biology, Miami University, 45056, Oxford, OH, USA |4 aut | ||
| 950 | |B NATIONALLICENCE |P 773 |E 0- |t Biogeochemistry |d Springer International Publishing |g 122/2-3(2015-02-01), 313-326 |x 0168-2563 |q 122:2-3<313 |1 2015 |2 122 |o 10533 | ||